2002 A6 Quattro Avant Rear Brakes Wrong Wrong Installed, Now issues
 

I recently changed my rear brakes pads and rotors. Unfortunately, I just bought the rotors from Autozone and they gave me the incorrect rear rotors. It had the 1.75" rotor hat instead of the 1.5" rotor hat. It badly scraped up the new rotor and the dust shield and calper bracket has some marks on them as well trying to pull out from the driveway. It took me a while to figure out that the rotor was wrong because I had assumed that Autozone gave me the right part and it looked fairly close. I had torqued the lugnuts to 90 ft/lbs and then when I pulled it back into the driveway, they had become loose (possible bending pther parts?).

Went I put the correct rotor in, the rotor is rubbing against the top notch of the caliper bracket. This is causing it to scrape really loud and wear out the new correct rotor/pads. In other words, the rotor cannot spin freely because the caliper bracket (top notch) is rubbing against the rotor.

I do not know how to correct this. It seems that the incorrect rotor messed up something or bent something. I have attached some pictures. Is the hub something that I have to look at or do you think it is just the caliper bracket/carrier?

Is the bracket bent?

It does not looks obviously bent, but I think it could be. Should I be worrying about the hub being bent?

Man, this really sucks. Sorry to hear about your problems! You've been trying to figure this one out for a week or so... you must be going nuts.

Have you tried putting it in neutral and spinning the hub and seeing if anything is out of round while you eyeball it from behind the hub? This is a total stab in the dark, and seeing how you have wear in more than one location (caliper bracket, dust shield, etc) may indicate that it's not just the caliper bracket that got a beating but maybe your hub assembly got slightly bent as well.

Good luck and let us know how you make out.